Achieving enhanced EMI shielding with novel non-woven fabric using nylon fiber coated with polyaniline via in situ polymerization

Atir, Salman; Ali, Sadiq; Nimra, S.Sadia; Zhao, Tingkai; Shakir, HM Fayzan; Rehan, ZA

doi:10.1016/j.synthmet.2022.117250

Cited by 11 publications

(1 citation statement)

References 42 publications

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“…Polyaniline (PANI) is a polymer material with conjugated electronic structure. 1 It has the characteristics of easy access to raw materials, simple synthesis process, good chemical and environmental stability, redox property, electrocatalytic activity, electrochromic behavior, proton exchange and photoelectric properties. [2][3][4] It can also be compounded with many materials to form new functional composites with unique properties.…”

Section: Introductionmentioning

confidence: 99%

The influence of aniline on the properties of polyaniline nanotubes and their polymerisation mechanism

Jiao,

Wang,

Xiao

et al. 2024

High Performance Polymers

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Polyaniline is a kind of polymer material with excellent electrochemical performance, and it stands out among a number of conductive polymer materials owing to its low cost, easy availability of raw materials, and excellent physical and chemical properties. However, the poor processability of polyaniline impedes its broad application. Preparing nanosized structure and introducing big molecular organic acids as dopant are practical strategies to solve this problem. Here using ammonium persulfate as oxidant, sodium dodecyl sulfate as surfactant, and 3,5-dinitrobenzoic acid as doping acid, polyaniline nanotubes were successfully prepared via emulsion polymerization method and characterized by various measurements. The influence of aniline concentration on the morphology and property of the product was explored. The polymerization mechanism of polyaniline nanotubes was discussed in detail based on the analysis of the microscopic morphology. As the concentration of aniline monomer increases, the position of the characteristic absorption peak in the infrared spectrum of the polyaniline main chain remains almost unchanged, but the ratio of benzene to quinone gradually increases. Along with the increasing aniline concentration, the crystallinity of polyaniline gradually decreases from 56.21% to 40.37%. In addition, the optimal conductivity is 2.05×10−2 S/cm when the concentration of aniline monomer is 0.5 mol/L.

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Section: Introductionmentioning

confidence: 99%

The influence of aniline on the properties of polyaniline nanotubes and their polymerisation mechanism

Jiao,

Wang,

Xiao

et al. 2024

High Performance Polymers

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pH tunable multifunctional cotton fabric with GO-PANI-Ag composite coating

Suryaprabha,

Selvamurugan,

Pham

et al. 2024

Cellulose

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Broadband electrical conductivity of metal/carbon nanotubes polyamide 6 composites fabricated by reactive encapsulation

Oliveira,

Ezquerra,

Denchev

2024

J Mater Sci

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This is the first broadband dielectric spectroscopy study on the temperature- and frequency-dependent electrical conductivity of polyamide 6 (PA6) composites containing both metal microparticles (Al, Fe, or Cu) and carbon nanotubes (CNT). The dually reinforced PA6 hybrids are prepared through compression molding of metal- and CNT-loaded microparticles (MP). These MP are synthesized by activated anionic ring-opening polymerization (AAROP) of ε-caprolactam in suspension, carried out in the presence of the micron-sized metal powders and the nanosized CNT fillers, with a combined load of up to 10 wt%. The good dispersion of the two loads by the AAROP strategy results in a notable increase in the electrical conductivity by up to 11 orders of magnitude. Moreover, the frequency-dependent behavior of the measured conductivity obeys the so-called universal dynamic response. This response involves a direct current (d.c.) electrical conductivity ($${\sigma }_{{\text{dc}}}$$ σ dc ) observed beyond a critical frequency, $${F}_{{\text{c}}}$$ F c , followed by a power-law response characterized by an exponent s, which fluctuates between 0.11 and 0.43. The $${\sigma }_{{\text{dc}}}$$ σ dc of the binary composites spans from 1.42 $$\times$$ × 10−5 to 1.63 $$\times$$ × 10−2 S/cm, this increase being attributed to the synergetic effect between CNT and the metal particles that contribute to the carrier mobility within the conductive network. Graphical Abstract

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Achieving enhanced EMI shielding with novel non-woven fabric using nylon fiber coated with polyaniline via in situ polymerization

Cited by 11 publications

References 42 publications

The influence of aniline on the properties of polyaniline nanotubes and their polymerisation mechanism

The influence of aniline on the properties of polyaniline nanotubes and their polymerisation mechanism

pH tunable multifunctional cotton fabric with GO-PANI-Ag composite coating

Broadband electrical conductivity of metal/carbon nanotubes polyamide 6 composites fabricated by reactive encapsulation

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